YASKAWA GA800 Series, Техническое описание

Страница: 736 / 1016

12.4 C: Tuning
736 YASKAWA SIEPC71061737B GA800 Drive Technical Reference
Figure 12.58 Setting a Variable Carrier Frequency to Agree with the Output Frequency
Note:
•
When C6-05 ≤ 7 , the drive disables C6-04 . The carrier frequency is fixed to the value set to C6-03 .
• The drive detects oPE11 [Carrier Frequency Setting Error] when these conditions are correct at the same time:
– C6-05 ≥ 6
– C6-04 ≥ C6-03
■
C6-04: Carrier Frequency Lower Limit
No.
(Hex.)
Name Description
Default
(Range)
C6-04
(0226)
Carrier Frequency Lower
Limit
Sets the lower limit of the carrier frequency. Set C6-02 = F [Carrier Frequency Selection = User
Defined (C6-03 to C6-05)] to set this parameter.
Determined by C6-02
(1.0 - 15.0 kHz)
Set C6-03 [Carrier Frequency Upper Limit] , C6-04 , and C6-05 [Carrier Freq Proportional Gain] to make the carrier
frequency change linearly with the output frequency.
Note:
The drive detects oPE11 [Carrier Frequency Setting Error] when these conditions are correct at the same time:
• C6-04 ≥ C6-03
•
C6-05 ≥ 6
■
C6-05: Carrier Freq Proportional Gain
No.
(Hex.)
Name Description
Default
(Range)
C6-05
(0227)
Carrier Freq Proportional
Gain
Sets the proportional gain for the carrier frequency. Set C6-02 = F [Carrier Frequency Selection =
User Defined (C6-03 to C6-05)] to set this parameter.
Determined by C6-02
(0 - 99)
Set C6-03 [Carrier Frequency Upper Limit] , C6-04 [Carrier Frequency Lower Limit] , and C6-05 to make the carrier
frequency change linearly with the output frequency.
■
C6-09: Carrier Freq at Rotational Tune
No.
(Hex.)
Name Description
Default
(Range)
C6-09
(022B)
Carrier Freq at Rotational
Tune
Sets the Auto-Tuning carrier frequency. Usually it is not necessary to change this setting.
0
(0, 1)
If you set C6-09 = 0 for a high-frequency or low-impedance motor, it can cause oC [Overcurrent] . To prevent oC , set
the carrier frequency to a high value and set C6-09 = 1 before you do Auto-Tuning.
The procedure to set the carrier frequency when the A1-02 [Control Method Selection] setting changes.
•
When A1-02 = 2, 3 [OLV, CLV] , set C6-02 = F [Carrier Frequency Selection = User Defined (C6-03 to C6-05)]
and then increase the value set to C6-03 [Carrier Frequency Upper Limit] .
• When A1-02 = 4 to 7 [AOLV, OLV/PM, AOLV/PM, or CLV/PM] , use C6-02 to increase the carrier frequency.
0 : 5kHz
Note:
When A1-02 = 5, 6, 7 [Control Method Selection = OLV/PM, AOLV/PM, CLV/PM] , the carrier frequency is 2 kHz.
1 : use C6-03
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV